S-91475A760 0.377" ID x 0.68" OD ASME B18.21.1; MS35338-141 Mil. Spec. Split Lock Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from Black-Oxide 316 Stainless Steel, ideal for harsh environments and extending service life.
• Exceptional vibration resistance due to the split lock design, preventing fastener loosening in dynamic applications.
• Enhanced durability and spring action provided by a Rockwell C35 hardness, ensuring reliable performance under load.
• Precise fit for 3/8" screws with a 0.377" ID and 0.68" OD, offering secure fastening and easy installation.
• Guaranteed quality and interchangeability through compliance with ASME B18.21.1 and MS35338-141 standards.
• Safe for regulated industries with full compliance to RoHS 3 and REACH environmental directives.
• Robust construction for heavy-duty use with a 0.094" thickness, suitable for high-stress industrial assemblies.

Professional Applications & Engineering Value

This split lock washer is engineered to solve critical challenges in industrial settings where vibration and corrosion are major concerns. Constructed from Black-Oxide 316 Stainless Steel, it offers outstanding resistance to corrosive elements, making it perfect for marine, chemical processing, and outdoor applications. The standard split lock design and robust Rockwell C35 hardness provide a continuous spring force that counters loosening under dynamic loads, ensuring long-term joint integrity in machinery, automotive, and structural assemblies. Its precise dimensions (0.377" ID, 0.68" OD) ensure a perfect fit for 3/8" screws, reducing installation errors and maintenance downtime, while meeting rigorous standards like ASME B18.21.1 for reliable performance in critical engineering projects.

Specification Summary & Compliance

This washer features precise dimensions with an ID of 0.377", OD of 0.68", and Thickness of 0.094", designed for 3/8" screws in the inch system. It conforms to ASME B18.21.1 and MS35338-141 specifications, ensuring dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, affirming its safety and environmental responsibility for industrial use.